Strikes me as kind of a pointless poll. The question, as phrased, is not one of opinion. There must be a factual answer to it, even if we don't have the sales figures or whatever available to know what that answer is.
And I assume we are only talking about 9x19mm here? And including all possible markets (civilian, military and law enforcement)? Beretta must have easily made 1 million or so original m9s for the USA, France and Italy (they made 700,000+ just for the US and France alone), and that was a long time ago (many variants and additional contracts awarded since then to add to the number). The Browning Hi power and clones have been in production since something like 1935, and are still the service weapon of several countries armed forces. Must be millions of them made by now.
P.S. one place to get some numbers for recent years in the USA is
http://www.atf.gov/firearms/stats/index.htm In 2006, S&W seems the hands down production numbers winner - far more then Glock in 9mm pistols. But there is no way to get striker fired versus hammer models from the ATF pdf files.